( July 22, 2026, 3:38 PM EDT) -- PHILADELPHIA — The Third Circuit U.S. Court of Appeals on July 21 vacated the certification of a class of third-party payers (TPPs) who paid for prescriptions for Avandia after finding that the statistical evidence presented in the district court to prove that alleged fraud by GlaxoSmithKline LLC (GSK) caused them to pay more for diabetes drug showed proof of correlation but failed to meet the appropriate causation standard....